Improved Color-Rendering Property of the YAG:Ce-Nanocrystalline-Phosphor-Converted White-Light-Emitting Diode Through the Addition of CuInS2/ZnS Quantum Dot

2011 ◽  
Vol 6 (3) ◽  
pp. 234-238 ◽  
Author(s):  
Woo-Seuk Song ◽  
Da-Eun Nam ◽  
Heesun Yang
Keyword(s):  
Quantum Dot ◽  
White Light ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
Color Rendering

Utilization of LiSrPO4:Eu phosphor and CuInS quantum dot for fabrication of high color rendering white light-emitting diode

2013 ◽  
Vol 92 ◽  
pp. 325-329 ◽  
Author(s):  
Woo-Seuk Song ◽  
Jong-Hoon Kim ◽  
Jeong-Hoon Lee ◽  
Hye-Seung Lee ◽  
Ho Seong Jang ◽  
...  
Keyword(s):  
Quantum Dot ◽  
White Light ◽  
Light Emitting Diode ◽  
Light Emitting ◽  
Color Rendering

scholarly journals Chromaticity Study of Curcumin Dye Extracted from Curcuma longa L. Using for UV Light down Conversion for White Light Emitting Diode

2019 ◽  
Vol 290 ◽  
pp. 183-189
Author(s):  
Mahmood Al Shafouri ◽  
Naser Mahmoud Ahmed ◽  
Zainuriah Hassan ◽  
Munirah Abdullah Almessiere
Keyword(s):  
White Light ◽  
Uv Light ◽  
Light Emitting Diode ◽  
Curcuma Longa ◽  
Color Temperature ◽  
Light Emitting ◽  
Chromaticity Coordinates ◽  
Major Factors ◽  
Color Rendering ◽  
Down Conversion

In thus study, Turmeric phosphor dye was extracted from Curcuma Longa L. via a simple technique using silica gel. The phosphor was used for light down-conversion of UV light for the manufacture white light emitting diode (WLED). The UV-LED was analyzed over 395nm wavelengths. The characteristics of the white light chromaticity were controlled by tuning the current and phosphor concentration. An optimum color rendering index (CRI) value of 63.4 was obtained. The chromaticity coordinates (CIE) and correlated color temperature (CCT) were measured for various currents and phosphor concentrations. The white phosphor exhibited CIE value of 0.355,0.338 and CCT of 4567 K. The concentration of phosphor and amount of applied current were confirmed to be major factors that control the intensity of white light emitted from the sample, where CIE and CRI of the emitted light steadily increased with the concentration of phosphor and current. Thus, phosphor concentration has a critical effect on conversion efficiency. Key words: Turmeric, phosphor, WLED, curcumin

scholarly journals Correction: A high quality liquid-type quantum dot white light-emitting diode

Nanoscale ◽  
2018 ◽  
Vol 10 (13) ◽  
pp. 6214-6214 ◽  
Author(s):  
Chin-Wei Sher ◽  
Chih-Hao Lin ◽  
Huang-Yu Lin ◽  
Chien-Chung Lin ◽  
Che-Hsuan Huang ◽  
...  
Keyword(s):  
Quantum Dot ◽  
White Light ◽  
Light Emitting Diode ◽  
High Quality ◽  
Light Emitting ◽  
Liquid Type

Correction for ‘A high quality liquid-type quantum dot white light-emitting diode’ by Chin-Wei Sher et al., Nanoscale, 2016, 8, 1117–1122.

scholarly journals Remote-type, high-color gamut white light-emitting diode based on InP quantum dot color converters

2014 ◽  
Vol 4 (7) ◽  
pp. 1297 ◽  
Author(s):  
Sun-Hyoung Lee ◽  
Ki-Heon Lee ◽  
Jung-Ho Jo ◽  
Byoungnam Park ◽  
Yongwoo Kwon ◽  
...  
Keyword(s):  
Quantum Dot ◽  
White Light ◽  
Light Emitting Diode ◽  
Color Gamut ◽  
Light Emitting
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